Hair cream is an example of which of the following?

When the dispersion medium in a colloidal system is a gas,it is called ....

The gold numbers of protective colloids $A, B, C,$ and $D$ are $0.50, 0.01, 0.10,$ and $0.005$ respectively. The correct order of their protective power is:

Equal volumes of two $AgI$ sols are mixed together. The first sol is obtained by adding $AgNO_3$ to a slight excess of $KI$,and the second sol is obtained by adding $KI$ to a slight excess of $AgNO_3$. What happens when they are mixed?

How does a delta form at the meeting place of sea and river water?

Which property of colloidal solution is independent of charge on the colloidal particles?